Q4OS Forum

fabio8v

Member

Registered: 2025-04-12

Posts: 5

After install Q4 it is impossible boot windows

Hi
my disk has 1 partition windows 2025 server, 1 partition ntfs, 1 partition fat32 (here I wish to install Q4 and I did it) but at the boot appears only Q4, can you help me?

q4osteam

Q4OS Team

Registered: 2015-12-06

Posts: 4,804

Website

Re: After install Q4 it is impossible boot windows

What way did you install Q4OS ?
Does your PC have an EFI bootloader?

You may only need to edit "/etc/default/grub" and set "GRUB_DISABLE_OS_PROBER" to "false". Thereafter run in terminal:
$ sudo update-grub
and reboot. Windows should be shown in the boot table.

You could also select the default boot entry in EFI BIOS.

Last edited by q4osteam (2025-04-14 20:31)

fabio8v

Member

Registered: 2025-04-12

Posts: 5

Re: After install Q4 it is impossible boot windows

Thank you for replay, my bios is legacy, on the /etc.... is already setting as you wrote....

fabio8v

Member

Registered: 2025-04-12

Posts: 5

Re: After install Q4 it is impossible boot windows

well, I risolved.. change from true to false

q4osteam

Q4OS Team

Registered: 2015-12-06

Posts: 4,804

Website

Re: After install Q4 it is impossible boot windows

... set "GRUB_DISABLE_OS_PROBER" to "true".

Oh "false" indeed, that was mistake, sorry for that. Fixed in the post in question.